MediaWiki MCP Server is an MCP (Model Context Protocol) server that lets Large Language Model clients issue actions against any MediaWiki installation. It exposes a set of tools to manage wikis and pages, including adding and removing wikis as MCP resources, creating, updating, deleting, and undeleting pages, retrieving page and revision data, listing category members, uploading files, and performing content searches. Resources are addressed via mcp://wikis/{wikiKey}, and credentials are never exposed in resource content. After you add or remove a wiki, the server emits notifications (notifications/resources/list_changed) so clients refresh their view. Configuration is done with a config.json file (default config.json) listing wikis with sitename, server, articlepath, scriptpath, and authentication details (token, username, password, private). The server supports OAuth2 tokens (preferred) or bot username/password fallbacks; authentication is required for tools marked as secured. Installation offers Smithery, Claude Desktop/Code, VS Code, Cursor, Windsurf, and Claude Code integration. Environment variables include CONFIG, MCP_TRANSPORT, and PORT. The development section introduces MCP Inspector and MCPJam Inspector for testing without an LLM.